Propiolactone
丙内酯
🗣️ 情景例句
He goes to high school.
他在上高中。
You cannot make a silk purse out of a sow's ear.
猪耳朵做不成丝钱包；巧妇难为无米之炊。
The dish rose to the surface and was gently drawn towards the canal bank.
盘子慢慢浮出水面，被轻轻地拽向运河岸边。